US offshore flagship Vineyard Wind costs could balloon. Vineyard Wind CFO Alvaro Ortega Sebastian. Photo: American Clean Power Association

US offshore flagship Vineyard Wind costs could balloon to $3.5bn: CFO Ortega

Eponymous developer offers 'no comment' as to whether original $2.8bn price-tag for country's first utility-scale offshore wind project is likely to be eclipsed by time 800MW array is online

22 October 2021 13:42 GMT Updated  26 October 2021 20:42 GMT